Improvement in power printing-presses



UNITED STATES PATENT OFFICE..

JEDEDlAH MORSE, OF CANTON, ASSIGNOR TO THE S. P. RUGGLES POVER- PRESSMANUFACTURING COMPANY, OF BOSTON, MASSACHUSETTS.

Specification forming part of Letters Patent No. 17,543, dated Julie 9,1857.

To all whom t may concern:

Be it known that I, JEDEDIAH MORSE, of Canton, in the county of Norfolkand State of Massachusetts, have invented an Improved PowerPrinting-Press, and I do hereby declare that the same is fully describedand represented in the following specification, and the accompanyingdrawings, of which- Figure l is a top View of the same.; Fig. 2, a frontside elevation of it; Fig. 3, a rear side elevation of it; Fig. 4C, avertical and transverse section of it, such being taken through itsfront rocker type and so as to show the mechanism in rear of the same.Fig. 5 is a longitudinal and vertical section, it being taken. in frontorto the right of the main camgear and so as to exhibit the mechanismfor operating the bed.

Such other figures as may be necessa-ry to a correct delineation of myimprovements will be hereinafter referred to and described.

In such drawings, A exhibits the pressframe; B, the platen;C,themovablebed; D, the sheet-carrier or frisket-carriage, as it issometimes termed; E, the pile-platform, and F the iiy or fly-frame.

G is the ink-fountain, H H the arch-rods, and I the arch-bar, directlyunder which the platen is arranged.

K is the driving-shaft, and L is the main cam-shaft, the two beinggeared together by a pinion M and a main cam-gear N, iixed to them,respectively. The drivin U-shaft carries a fiy-wheel o and two groovedpulleys P Q, which are arranged on it, as shown in Figs. l, 2, and 4,such drivin g-shaft, when the machine is in operation, being rotated b vpower applied to it in any proper' manner.

The sheet-carrierD is a rectangular frame, which slides horizontally onways c a and has an intermittent, reciprocating, and rectilinear motionimparted to itby means of acam-groove h, which is made in the side ofthe gear N and operates an arm c, extended from a horizontal shaft d.From the said, shaft two arms e e rise upward, each being jointed to thecarrier by means of a pitman f,'arranged as shown in Figs. it and lnking-rollers g g are carried by the carrier l), so as to ink the form oftype and receive their ink from a drum or cylinder 7i, which obtains itsink from a vibrating roller or carrier li, playing between it and theink-roller 7o of the ink-fountain. Machinery is applied to the cylinderor drum zy in order to impart to it rotary and endwise movements. Forrotating it an endless band m passes around the pulley Q and anotherpulley n, the latter being fixed on the shaft of the cylinder.

For imparting an endwise reciprocating movement of the cylinder', inorder that the ink may be laid evenly on the hiking-rollers, there isplaced on the shaft of saidcylinder a lantern-grooved gear or pinion o,formed with a groove around its periphery and with its cogs or teeth atthe bottom of said groove. Into this lantern-gear a gear p, rotating ona stationary pin or stud, works. This gear p has its plane inclined withrespect to that of the lantern-gear, and so that when both are inrotation the gear p will act as acam on the gear o and move it and itsshaft laterally.

The cam-shaft L carries two cams o' o', which respectively operateagainst pendulous rocker-toggles s s, hinged to the bed C. Figs. G and 7are inner side views of these rockertoggles and the mechanismimmediately adjacent to and operating with them, they being jointedtogether by a bar t, extended from one to the other, and so fixed tothem as to cause one of the toggles to be moved by and with the other.Besides the cams r r the shaft L is furnished with another cam u, whichis arranged close to one of the toggle-cams r fr and so as to operateagainst a pin c, extending from the inner side of the adjacent penduloustoggle. During the rotation of the shaft L the cams fr r act against therockertoggles and force them upward, so as to elevate the bed toward theplaten, the cams and toggles by their conjoint action serving to producethe required pressure for printing a sheet of paper. The object of theadditional cam uy and the stud o is to so control the movements of thetoggles toward the cams which may be approaching them as to prevent thecams from striking the toggles with a concussion or blow such as Vwouldnot only operate to the in jury of the macl1ine,but belikely to displacethe type more 0r less. Other advantages also result from the above. Assoon as the bed drops down to its lowest position the ward, so as to bein a proper position for the cams to again operate and roll againstthem.

In order that the toggles, after they may have fallen back, may notvibrate forward out of their proper time, the rearmost toggle isprovided with a stud fr, which projects from its rear side and operateswith a drop-latch y, arranged as shown in Fig. 6. This drop-latch turnson a pins and rests on a shelf a. Vhen the toggles fall backward, thestud c will go under and lift and pass by the drop-latch, whichimmediately after the same has taken place will fall down upon itsshelf, and by resting thereon will prevent the toggle from vibratingforward until it is elevated above the drop-latch. This will be effectedwhen the' toggles are next forced up by the cams. During the nextmovement of the toggles, that next adjacent to the drop-latch will passover and down in front of the latter, so as to be capable of goingunderneath it, as above described.

The press is provided with an inclined table or plate R, on which thesheets of paper to be printed are to be laid. Underneath the table thereare arranged four dischargingrollers a2 h2 c2 d2. Two of them d2 and c2are geared together, as shown at e2 and f2. Fig. 8 is an under side viewof the said plate and rollers. The two rollers c2 b2, as well as theother two c2 d2, are furnished with a series of endless bands g2 or71,2, arranged as shown in the drawings. A pulley i2 is fixed on theshaft of the roller c2 and has an endless band 7a2 extending around itand the pulley P, hereinbefore referred to, the same serving to put thedischarging rollers and beltsin revolution. The whole, or belts androllers, may be termed the sheet-discharging apparatus. It operates inconnection with two rollers Z2 m2, arranged as shown in Fig. 5 and bydottedl lines in Fig, l.. A set of rods or bands n2 n2 n2 is fastened tothe roller Z2 and to the front edge of the sheet-carrieres and passunderneath the roller m2. A small barrel or drum o2 is fixed on theshaft of the roller Z2 and has a cord p2 attached to it and wound aroundit and fixed to the periphery of a barrel or pulleyq?, which rotates ona pin r2, and has a coiled spring (represented at s2 by dotted lines)arranged within and fixed to it and the pin r2, as the mainspring of awatch is arranged in its barrel and fixed thereto and to its arbor. Theobject of the spring-pulley and cord is to turn back the roller Z2 andwind the tapes or bands thereon while the carrier is moving backward.During the forward movement of the carrier with a sheet of paper thelatter will rest on the bands; but while the carrier is being retractedthe bands cause the sheet of paper to pass between the rollers Z2 m2 andso as to be delivered or properly presented to the dischargingapparatus, which, seizing the sheet, moves it back and down upon thefly, by which it is turned over upon the pack on the table or platformE. This fly is put in motion by a pitman si and two arms t2- ft,arranged as shown in the drawings, the arms project-ing, respectively,from the Iiy and the shaft CZ. This fly is constructed of a shaft'o2 anda se-A ries of arms or fingers 102 w?, extended from it, as shown in thedrawings. On` this flyshaft is a small eccentric x2, (see Fig. 9,) whichis a section of theeccentric and exhibits on an enlarged scale themechanism for lowering the pack-platform. This eccentric works in adraw-pawl y2, which acts against a ratchet CL3, that by means of gearsb3 c3 gives rotary motion to a shaft CZE. This shaft carries twopinions, which operate,respectively, in vertical racks extending downfrom the pile-platform, ,one of the said pinions and its rack being seenat (Z4 and e4 in Fig. 9. The said pileplatform should be so applied totheframeA as to be capable of being moved freely in vertical directions.

From the above it will be seen that during the reciprocating or back andforward movements of the fly the pawl thereof will cause the train ofwheels to be put into an intermittent motion, such as will graduallydepress the pile-platform. If the machinery be properly proportioned,the said platform may be caused to descend in the proper degree and rateas the pile of paper received on it may increase in thickness.

On the outer end of the main cam-shaft L is a cam e5, which worksagainst a lever f5. (See Fig. 3.) This lever turns on a fulcrum g3, andis bifurcated at its upper end and straddles a rod 718, which isarranged as shown in said figure, and jointed to the crank-pin i3 of arotary plate or wheel 7a3, and turns freely on the shaft of theink-fountain roller. The rod h3 extends through the lower arm of anadjustable lever m3 and has a knob or head n3 fixed on its outer end.This lever turns on a fulcrum-screw o3 and between two friction-platesp3 r3, the latter of them being fixed to the press-frame. By screwing upthe fulcrum-screw the lever may have any necessary degree of frictionbetween the plates when it is moved on itsfulcrum.

An internal ratchet S5 is fixed on the shaft of the ink-fountain roller,and in order to operate therewith the disk or plate 7c3 carries aspring-pawl Z5, the same being as shown in Fig. 10, which is a sectionof the ratchet, and exhibits not only its teeth, but the said pawl. Apin a3 extends through the rod h3 and near to the lever f5, as shown inthe drawings. Furthermore, a weight o3 is affixed to the pawl-plate inposition, as shown in Fig. lO. The gravitating power of the weightelevates the pawl and turns the ratchet, so as to rotate thefriction-roller until the knob n3 brings up against the lever m3.

Although the lever f5 has a positive motion, the rod h3 may have avariable one, or one which may be varied according to the position ofthe adj Listing-lever m3, which determines the amount of the fall of theweights and of course the extent of forward movement oli the pawl. Fromthe above it Will be seen that the rotary motion of the fountain-rollermay be either increased or diminished, as occasion may require, in orderto enable it to impart more or less ink to the carrier-roller.

Vhat I claim as of my invention in the above-described press is asfollows:

l. The combination and arrangement of mechanism or devices forsupporting the sheet of paper over the carrier or frisket-carriage andguiding and presentingit to the discharging apparatus, such devicesconsisting of the cords n2 n2, the rollers Z2 m2, the drum o2, cord p2,and the barrel or pulley q2, provided With a spring or its equivalent,as described.

2. The combination ofthe cam u and stud c' with the rocker-toggle andits operatingcam, the same being for the purpose as specifled.

The combination for regulating the rotary motion of the ink-fountainrollers, the same consisting of the adjustable stop-lever m3, theconnecting-rod h3, the cani e5, the lever f5, the weighted plate 7:?,and the pawl Z5,

and the internal ratchet S5, constructed and applied togethersubstantially as specified.

et. Combining with the pile-platform and the lly a mechanism,substantially as described, which by the reciprocating movements of thefly shall lower the platform in correspondence with the increase ofthickness of the pile, such mechanism being the cam on the fly-shaft,the pawl thereof, and the train of gears and racks, applied andoperating as specified.

5. The mechanism or combination for imparting to the ink-cylinder hendwise motions, as described, the same consisting of the grooved pinionor gear o, and the inclined gear p, constructed, arranged, and appliedtogether and so as to operate substantially as specified.

In testimony whereof I have hereunto set my signature.

JEDEDIAH MORSE.

Vitnesses:

R. Il. EDDY, F. P. HALE, Jr.

